Blender objects select
If what you need is to make one object seperated into different objects, you can go to edit mode then selecting the parts that you want to seperate (if they are not connected to other parts pressing L speed up your selection or pressing ctrl and numpad's + or -, also selecting one point and then pressing shift and ctrl then selecting the opposite side of that could select the whole area, try it on a subdivided square to get how it works). After selecting the parts press P and click on seperate by selection. it will seperate the selection to a new object. hope it helps.